In crawling the internet I came across a very interesting (though probably illegal) how-to on how to hack the road signs and make them display whatever you want to say.  Cool…Until you get arrested.  So, continue on at your own risk to learn the quick and easy way to spread your message to the world. Hacking a road sign is actually  much easier than you think.  Usually electronics are covered with a small lock, however they are usually unlocked.  Upon opening...